Research Papers/Topics in Applied Geology

Testing the spectral resolutions of the new multispectral sensors for detecting Phaeosphaeria leaf spot (PLS) infestations in maize crop

Abstract: Maize is one of the most important subsistence and commercial crops in the world. In Africa, it is regarded as one of the most popular food crops. Recently however, significant losses due to Phaeosphaeria leaf spot (PLS) infestation have been reported. Therefore, techniques for early detection of PLS infestation are valuable for mitigating maize yield losses. Recently, remotely sensed datasets have become valuable in crop assessment. In this study, we sought to detect early PLS inf...

GEOLOGY AND OCCURRENCE OF GROUNDWATER IN ISHIEKE AREA SOUTHEASTERN NIGERIA

ABSTRACT The study area is located in the southeastern part of Nigeria. The area is predominantly, Abakaliki formation of Albian, Asu-River group, Lower Benue Trough. The area lies between latitude N060221 011 to N060 281 011 of the equator and longitude E0080 001 0011 to E0080 061 0011 of the Greenwich meridian. The study was carried out to ascertain the geology and the occurrence of groundwater in the area through detail geological field mappings geophysical investigation borehole drilling ...

Structural and Petrological Evolution of the Shai Hills Tectonic Suture Zone, Southeastern Ghana.

ABSTRACT High Pressure (HP) mafic granulites (mafic garnet gneisses) in the Shai Hills suture zone occur as NE/SW trending isolated inselbergs in the Accra plains. They characterize the suture zone rocks of the Pan-African orogeny in Ghana. Various aspects of the Shai Hills suture rocks have been studied yet relatively little is known about its structural and deformational evolution. This work presents a new research into the structural, petrological and deformational evolution highlighting ...

INTEGRATION OF ELECTRICAL RESISTIVITY AND INDUCED POLARIZATION FOR SUBSURFACE IMAGING AROUND IHE POND, NSUKKA, ANAMBRA BASIN

ABSTRACT Integration of 2D geophysical methods, Electrical Resistivity Imaging (ERI) and Induced Polarization (IP) were used to study the subsurface geology and structures around Ihe pond, Nsukka in Anambra basin. The research work has delineated the geologic structures and strata responsible for the water in the pond, and determined the origin of the Pond. Three 2D resisitivity profiles of maximum spread lengths of 500, 400 and 500m were run around the pond. Horizontal profiling, using Wenne...

PALEO-ENVIROMENTAL ANALYSIS OF ANAMBRA BASIN SEDIMENTS. A CASE OF ACHARA-UGWUEME AND ENVIRONS, SOUTH EASTERN, NIGERIA.

Abstract:  Paleo-environmental study of Achara-Ugwueme in Anambra Basin was studied using Textural analysis parameters, which includes paleocurrent analysis, sieve analysis and pebble morphological methods. The paleocurrent result shows that the variance value is 1701 which indicates that the units were deposited in fluvial environment. The azimuth with rose diagram suggested southwesterly direction of paleocurrent during the time of deposition, thus pacing the provenance at northeast, p...

Effects Of Eucalyptus Plantation On Soil Physico-Chemical Properties In Thiririka Sub-Catchment, Kiambu County, Kenya

ABSTRACT Trees are very important in Thiririka sub-catchment of Kiambu County in Kenya for reasons such as income generation, soil and water conservation, biodiversity conservation, charcoal production, erosion control, among many others. Eucalyptus spp. (E. grandis, E. saligna and E. globulus) remain part of the dominant tree species planted in the Thiririka sub-catchment. Although these species are planted in various spatial patterns in the sub-catchment to meet the demand for fuel wood, ...

Geological Distribution Of Mineral Resources In Southwestern Nigeria

  ABSTRACT The occurrence and distribution of the resources of southwestern Nigeria are intimately associated with the geology of the area. The basement complex of southwestern Nigeria lies to the east of the West African Craton, an area that has undergone late Precambrian to early Palaeozoic orogenesis. To the east and south, the Mesozoic-Recent sediments of the Dahomey and Niger Coastal Basıns cover the Basement Complex, The mineral resources of southwestern Nigeria are grouped into thre...

Expected impacts of active mining on the distribution of heavy metals in soils around Iludun-Oro and its environs, Southwestern Nigeria

This present study is aimed at evaluating the level of environmental degradation and potential ecological risk in soils around an active (tantalum-niobium) mining site of Iludun-Oro, southwestern Nigeria. A total of 18 topsoil samples were randomly collected from different parts of the study area and analysed using the inductively coupled plasma-mass spectrophotometry. The concentrations of Pb, Zn, Fe, Cu, Cr and Ni varied between 0–678, 7–222, 1.64–8.87, 8.8–145, 1.4–81 and 1.6–9...

The use of Grimmen clay (TS-136) as a substitute for Geopolymer cement component``(Green Concrete)

Abstract The term Geopolymer was introduced to represent the mineral polymers resulting from geochemistry. The process involves a chemical reaction under highly alkaline conditions on Si-Al minerals, yielding polymeric Si-O-Al-O bonds in amorphous form. The actual compressive strength of the concrete depends on various parameters such as the ratio of the activator solution to fly ash, molarity of the alkaline solution, ratio of the activator chemicals, curing temperature etc. In recent years,...

Provenance and Tectonic Setting of Amasiri Sandstone (Turonian) in Ugep Area, Southern Benue Trough, Nigeria: Evidences from Petrography and Geochemistry

bstract - The p et rographic and geochemical study of sandstones of Eze - Aku Formation (Turonian) outcropping in Ugep area souther n Benue Trough Nigeria was carried out to ascertain the sandstone provenance and tectonic setting. Field studies show that the sandones occur in linear, parallel northeast - southwest trending ridges alternating with shale sequence. The sandstone facies show coarsening upward sequence, slightly bioturbated, cross - stratified, rippled bedded which infer fores...

Landslide Susceptibility Mapping of Oke Agbona Hill (okemesi) Using Gis, Ekiti State

ABSTRACT ͦ Many areas are exposed to different types of natural hazards including landslides, which can lead  to loss of lives, injury to people, damage to property and disruption of economic activities. This  project assessed the landslide susceptibility and quantifies the hazard and risk related to landslides  in Okemesi, southwest, Nigeria using remote sensing imageries and geographic information  system (GIS). The result revealed that slope, elevation, aspect, distance from road can ...

GEOCHEMICAL CHARACTERISTICS WITH RESPECT TO GOLD MINERALIZATION OF BENI/KAFIN-KORO AREA (PART OF SHEET 165, BISHINI SW), NORTH-CENTRAL, NIGERIA

A total of 21 samples were analyzed in the laboratory, Inductively Coupled Plasma-Atomic Emission Spectrum (ICP-AES) was employed in the whole rock analysis for oxides, total sulphide (TOS), total carbon (TOC) and loss on ignition (LOI), while Inductively Coupled Plasma-Mass Spectroscopy (ICP-MS) was employed in the analysis for trace metals including gold, and rare earth elements (REE) that were either associated with or served as pathfinder for gold. Statistical analyses revealed an anomaly...

Radon soil–gas as a geological mapping tool: case study from basement complex of Nigeria

Abstract  In an effort to quantify thegeogenic radon soil–gas potentialand appraise the use of radon tech-nique as a geological mapping toolin a crystalline basement rock terrain of Ile–Ife Nigeria, radon measure-ment concentration were made usinga radon detector instrument (EDARD-200) that measures radon isotopes by a scintillator cell coupled to a photo multiplier tube. The data were collected from soils derived from three different lithologic rock units. The observed values were the...

FORAMINIFERA BIOZONATION OF "WELL K-27", GREATER UGHELLI DEPOBELT, NIGER DELTA BASIN, SOUTH EASTERN NIGERIA

ABSTRACT Ditch cutting samples collected from interval 2590 3300 metres in Well K-27, Greater Ughelli depobelt, Niger Delta were studied for their lithology and foraminiferal content with the aim of dating and subdivision of the sequences penetrated by the well into biozones. The samples were processed using standard foraminiferal processing methods involving sample disaggregation and washing through a 63 micron mesh sieve, drying and picking and subsequent analysis of the foraminifera and a...

FIELD REPORT ON THE GEOLOGICAL MAPPING OF IGARRA AREA

Basically, geological mapping involves the study of rocks; in situ, that is, in their natural environment and the representation of such rocks on a geological map. Furthermore, rocks of the Igarra area constitute part of the Basement Complex of southwestern Nigeria. On the basis of field relationships and petrological studies, these rocks can be grouped into gneissic rocks, meta-sedimentary assemblages, intrusive igneous rock bodies and sedimentary rocks (formations).             T...


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